{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "269113",
    "entityType": "Track",
    "nonce": "0x90f019fcde7c077af07b7e64c1720221d0ef38cbce061d7881aa794fa3d3ba2d",
    "signature": "0x33ec532d00055aa252392d1dad1c57fb2754fafdfb64dafd7987a48c9d4a7ddd7314c331b4676d28e9e7cb0a50606e41494ebd9ddfb48ce48c7613a3b06666931c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}